Allow syncing null document data

Author: tobyzerner

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+-   Allow syncing `null` document data.
+
 ## [0.2.0-beta.1] - 2024-05-14
 
 ### ⚠️ Breaking Changes

src/store.ts

@@ -61,9 +61,15 @@ export class Store<Schemas extends SchemaCollection = {}> {
     ): ModelForType<Type, Schemas> | ModelForType<Type, Schemas>[] | null {
         document.included?.map((resource) => this.syncResource(resource));
 
-        return Array.isArray(document.data)
-            ? document.data.map((resource) => this.syncResource(resource))
-            : this.syncResource(document.data);
+        if (Array.isArray(document.data)) {
+            return document.data.map((resource) => this.syncResource(resource));
+        }
+
+        if (document.data) {
+            return this.syncResource(document.data);
+        }
+
+        return null;
     }
 
     public syncResource<Type extends (keyof Schemas & string) | (string & {})>(

src/types.ts

@@ -1,7 +1,7 @@
 import { Model } from './model.ts';
 
 export interface JsonApiDocument<Type extends string = string> {
-    data: JsonApiResource<Type> | JsonApiResource<Type>[];
+    data: JsonApiResource<Type> | JsonApiResource<Type>[] | null;
     included?: JsonApiResource[];
     meta?: Record<string, any>;
     links?: Record<string, any>;